Electrical coupling



Oct. 2, 1928. I 1,686,011

. W. O. KENNINGTON ELECTRICAL COUPLING Filed April 14, 1925 Dwelling fialfnnu ioi Patented ()ct. 2:1928.

UNITED STATES PATENT OFFICE.

WILLIAM OSCAR KENNINGTON', OF LONDON, ENGLAND, ASSIGNOR TO A. C SPARK PLU COMPANY, OF FLINT, MIdHlIGAN, A COMPANY OF MICHIGAN;

- anacrmca L COUPLING.

A plication filed April 14, 1925, seiiai Ho aa iazi na in Great Britain January 12, 1925.

This invention has reference to electrioal couplings, clips or connections more partic-' 'ularly but not exclusively adapted for-connecting the high tension cable to the terminal post of sparking plugs. a V r The objects of my invention are to pro.- vide an'improved coupling of simple construction' which may be economically produced, will ensure good electrical contact, and one which will be mechanically able to stand the severest vibration to which it is likely to be subjected in practice. Referring to the accompanying draw- 1ngs:

Figure 1 is an elevation of one convenient form of clip in accordance with the present invention as applied to asparking plug and hi h tension cable, and I igure 2 is an enlarged View of the clip alone in unstressed position.

In carrying the invention into effect in one form by way'of exam le adapted for attaching a high tension calile to a sparking'plug terminal post, I form the clip of spring 5 wire which is bent for about two and a halt" turns to form a ring a (Figure 2).

The twovlegs b, c terminate respectively in a loop or, eye d and two loops or eyese f? all these eyes being an easy fit upon the terminal post 9 to which they are to be applied. The ring a when in unstressed condition (Figure 2) is of-such internal diameter that when the cable hhas been stripped terminal post er the like 9 and uponbeing released; the cable Willbe securely gripped by the spring ring of the coupling clip and I the terminal post also securely gripped-byj the aforesaid eyes.

Under this invention I am able to provide 1 a coupling clip which will grip the cable tightly when the legs are pressed'together and by virtue of the legs being stressediwhen the .coupling clip is in position upon the terminal post the latter is firmly gripped by the aforesaid eyes. Y

It will be understood-that the form described above is given by vway of example only and may bemodified. '-For example it sis not essential to provide two and a half turns for the ring or the three eyes whichare shown, but the arrangement described is preferred; i f 1 I Having now described my invention what I claim as'new and desire-to secure by Letters Patent is t- I In combination, a conductor wire, a spark plug including a projecting electrode, and a connector electrically connecting-the wire to the electrode and consisting of a wire having a loop therein adapted to be loosely slipped-over the. end' of the conductor wire and engaging'tightly about the same when in connecting"positiomsthe end portions of the wire having, loops bent therefrom, one

being a double loop and: the other having a loop portion received between the convoluback and the conductors them back over the tions of the double loop, tending to spread to permit of theirbeing pushed over the apart therefrom to thereby clamp the electrode when in connecting position thereon, the axes of said loops when in connecting position substantially coinciding and 'substantially intersecting that" of the end portion of the conductor wire. 1

In testimony whereof I have signed-my name to this s ecification.

WILLI OSCAR 

